timm-23
C. elegans
Mitochondrial import inner membrane translocase subunit TIM23
What the model saw
Gene: timm-23 Organism: Caenorhabditis elegans Known functions: Mitochondrial import inner membrane translocase subunit TIM23. mitochondrion targeting sequence binding. transmembrane protein transporter activity. transmembrane transporter activity.
View unredacted entry
Mitochondrial import inner membrane translocase subunit TIM23. mitochondrion targeting sequence binding. transmembrane protein transporter activity. transmembrane transporter activity.
Solver output
timm-23 encodes the TIM23 translocase subunit, a core component of the mitochondrial inner membrane import channel responsible for translocating nuclear-encoded preproteins bearing mitochondrial targeting sequences into the matrix and inner membrane. Proper import of mitochondrial proteins is essential for maintaining the full complement of OXPHOS complexes, TCA cycle enzymes, and mitochondrial quality control factors. In C. elegans, mild impairment of mitochondrial protein import (e.g., via partial loss of TIM23 function) has been shown to activate the mitochondrial unfolded protein response (UPRmt), a retrograde signaling pathway that upregulates mitochondrial chaperones and proteases and extends lifespan. However, the normal (wild-type) function of timm-23 is to sustain efficient mitochondrial biogenesis and proteostasis, which is fundamentally required for mitochondrial health and organismal longevity. Loss of timm-23 function is detrimental, indicating its normal role supports rather than opposes longevity. The gene's activity is therefore classified as pro-longevity through its role in maintaining mitochondrial protein homeostasis and bioenergetic capacity.
GenAge curators classify each gene's normal function as promoting (Pro-Longevity) or opposing (Anti-Longevity) longevity, based on synthesis across studies. Loss-of-function effects can vary from this depending on the manipulation.
Advisor judgment
The model correctly predicted pro_longevity for timm-23. The mechanistic reasoning is solid: it correctly identifies TIM23 as a mitochondrial inner membrane translocase, explains that its normal function supports mitochondrial proteostasis and bioenergetics, and notes that loss of function is detrimental. The mention of UPRmt activation via partial loss of function is a nuanced point that is consistent with the literature. The reasoning correctly distinguishes between the gene's normal pro-longevity role (maintaining mitochondrial function) versus the paradoxical lifespan extension seen with partial knockdown (UPRmt activation). The confidence of 0.72 is appropriate given the complexity. Overall, this is a well-reasoned and correct prediction.
Raw API responses
solver
{
"reasoning": "timm-23 encodes the TIM23 translocase subunit, a core component of the mitochondrial inner membrane import channel responsible for translocating nuclear-encoded preproteins bearing mitochondrial targeting sequences into the matrix and inner membrane. Proper import of mitochondrial proteins is essential for maintaining the full complement of OXPHOS complexes, TCA cycle enzymes, and mitochondrial quality control factors. In C. elegans, mild impairment of mitochondrial protein import (e.g., via partial loss of TIM23 function) has been shown to activate the mitochondrial unfolded protein response (UPRmt), a retrograde signaling pathway that upregulates mitochondrial chaperones and proteases and extends lifespan. However, the normal (wild-type) function of timm-23 is to sustain efficient mitochondrial biogenesis and proteostasis, which is fundamentally required for mitochondrial health and organismal longevity. Loss of timm-23 function is detrimental, indicating its normal role supports rather than opposes longevity. The gene's activity is therefore classified as pro-longevity through its role in maintaining mitochondrial protein homeostasis and bioenergetic capacity.",
"confidence": 0.72,
"key_pathways": [
"Mitochondrial protein import (TIM23 translocase complex)",
"Mitochondrial unfolded protein response (UPRmt)",
"Oxidative phosphorylation / mitochondrial biogenesis"
],
"mechanism_class": "mitochondrial_dysfunction",
"longevity_influence": "pro_longevity"
}advisor
{
"notes": "The model correctly predicted pro_longevity for timm-23. The mechanistic reasoning is solid: it correctly identifies TIM23 as a mitochondrial inner membrane translocase, explains that its normal function supports mitochondrial proteostasis and bioenergetics, and notes that loss of function is detrimental. The mention of UPRmt activation via partial loss of function is a nuanced point that is consistent with the literature. The reasoning correctly distinguishes between the gene's normal pro-longevity role (maintaining mitochondrial function) versus the paradoxical lifespan extension seen with partial knockdown (UPRmt activation). The confidence of 0.72 is appropriate given the complexity. Overall, this is a well-reasoned and correct prediction.",
"failure_mode": "correct",
"answer_correct": true,
"mechanism_correct": true,
"reasoning_quality": 4,
"ground_truth_questionable": false
}